Sakamura Mahiro, an employee at the high-class old inn known as 'Kataoka', has an ambition to marry a rich man and live a comfortable life because of her previous relationship. Her goal is to find her 'ideal prince' with money, honesty, and values in a marriage partner that she will not negotiate on. While working at Kataoka, she comes to meet Kouya, Yugo and Keiichi as she searches for her ideal partner.